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A mixture of lipids is applied to a silica gel column, and the column is then washed with increasingly polar solvents. The mixture consists of phosphatidylserine, phosphatidylethanolamine, phosphatidylcholine, cholesteryl palmitate (a sterol ester), sphingomyelin, palmitate, n-tetradecanol, triacylglycerol, and cholesterol. In what order will the lipids elute from the column? Explain your reasoning.
The coil of a generator has a radius of 0.16 m. When this coil is unwound, the wire from which it is made has a length of 9.50 m. What is the peak emf of this generator
6 kg of an ideal gas is in a volume of 1 m3 at 250°C. The gas undergoes a constant pressure change of state until the temperature is 500°C. Find the pressure at the initial state
If a drop of NaOH solution had adhered to the side of the Ehrlenmeyer flask during the standardization of the NaOH solution, how will this error affect the reported MM of the unknown acid( higher or lower than actual value) Explain using mathamati..
Calculate the amount at which Lincoln should record the note payable and corresponding purchases on September 30, 2013, assuming that an interest rate of 10% properly reflects the time value of money in this situation.
How would you synthesize 3-isopropyl sulfide cyclopentanol. - using less than a 6 carbon molecule.
Green Computing Research Project. Prepare a project charter for the Green Computing Research Project.
The masks sell for $17.00. Budgeted fixed manufacturing overhead for the most recent year was $396,000. Actual production was equal to planned production. Required: Under each of the following conditions, state (a) whether operating income is ..
Draw the products that correspond to syn addiction of Br2 to trans cinnamic acid and those that correspond to anti addition.
How might the service plan to maintain generators be used by GEI to provide a future revenue stream and prepare a breakeven point (BEP) for the top management of the firm. One thing they were sure to investigate was how quickly their investment wou..
Analysis of an unknown substance showed that it has high boiling point and is brittle. It is an insulator as a solid but conducts electricity when melted, which of the following substances would have those characterisitics
0.134 mole of kcl and 0.248 mole of cacl2 were dissolved in water. calculate the total number of moles of cl- ions in the solution.
A sample of an unknown peptide undergoes a single round of Edman degradation, which liberates ATZ-Gly. Another sample of the peptide is treated with trypsin, and a third sample is treated with chymotrypsin. The table below shows the fragments.
A copper wire (density = 8.96 g/cm3) has a diameter of 0.41 mm. If a sample of this copper wire has a mass of 12 g, how long is the wire?
The mass of the ice cube is 11.2 g, and its initial temperature is -12.8 °C. The water resulting from the melted ice reaches the temperature of your skin
If only 10ml of 3.0 M KOH were used in the alum preparation instead of the specified 25 ml,would KOH then become the limiting reactant? Write the chemical equation for the conversion of Al(s) to solid aluminum alum KAL(SO4)2*12H2O (S)
How many millimeters of 1 N NaOH must be added to a 500-mL solution containing 500 mg of acetic acid to increase the pH to 5
a material can exhibit to be considered hazardous. Discuss five hazardous properties and give one example compound for each hazard.
Propose a synthesis of teflon (polytetraflauroethlene). What starting materials are required? What type pf reaction would be used to achieve polymerization
When steam (hot water) is passed over iron, hydrogen gas and iron (3) oxide are formed. What weight of steam would be needed to react completely with 100.0g of iron.
How much heat, in calories, does it take to warm 540 grams of water from 11.0 degrees Celsius to 37.0 degrees Celsius
Write a balanced equation with phase changes for an electrochemical cell that has a copper cathode immersed in a solution of cu+2 ions and a lead anode immersed in a solution of Pb+2 ions
The molecular formula of glycine (an amino acid) is NH2CH2COOH, the molecular mass is 75.07grams/mole. If 10 glycines are joined together by a dehydration reaction to make a polypeptide, what would the molecular mass of the polypeptide equal.
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